Answer:
3,992
Step-by-step explanation:
1/10 = 0.1
399.2/0.1 = 3,992
3990
Place the decimal to a fraction:
399.2 = 399 2/10
Simplify = 399 1/5
Put in improper fraction = 1995/5
Simplify more = 399/1 or 399
So:
399 divided by 1/10 = 3990
